低温胁迫下烟草海藻糖与海藻糖酶的动态关系研究

Journal of Hunan University of Arts and Science(Natural Science Edition)(2010)

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Abstract
研究了低温胁迫下烟草品种K326的海藻糖和海藻糖酶等指标的变化,结果表明:⑴低温锻炼、海藻糖和井冈霉素A处理均可引起烟草体内海藻糖含量增加,海藻糖酶活性降低,这种此消彼涨的关系反映了海藻糖可能是调节植物体抵抗逆境的一类应激物;⑵不同处理可使低温胁迫下烟草可溶性蛋白质代谢发生相应变化,SDS-PAGE结果证明三种处理均可能诱导低温胁迫相关蛋白的合成或表达增强.
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Key words
tobacco,trehalose,trehalase
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